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How to use classification Learner in my environment?

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Muhammad Kashif
Muhammad Kashif 2018-9-21
关闭： MATLAB Answer Bot 2021-8-20
I am working on facial expression recognition. i made a dataset contain features & classes of 213 images.
  • Step1: Each row of my dataset represents the features of 1 image. so for 213 images 213 rows
  • Step2: the last column represents classes like; 1,2,3,4,5,6,7
  1. Q1: when i run classification learner and the cross validation is checked the accuracy is very low.
  2. Q2: when i run classification learner and the cross validation is not checked the accuracy is good for all classifiers.
  • I dont understand why? please help me? if someone has already experienced

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